Spring shade-roller



(No Model.)

E. P. HARTSHORN.

SPRING SHADE ROLLER.

.No. 483,553. Patented Oct. 4, 1892.

UNITED STATES PATENT OFFICE. A

EDMUN D F. IIARTSHORN, OF NEWARK, ASSIGN OR TO STEWART IIARTSHORN, OF SHORT HILLS, NEW JERSEY.

SPRING SHADE-ROLLER.

SPECIFICATION forming part of Letters Patent No. 488,553, dated October 4,1892. Application filed J' une 26, 1891. Serial No. 397,598. (No model.)

To all whom t may concern:

Be it known that I, EDMUND F. HARTsHoRN, of Newark, county of Essex, and State of New Jersey, have invented a new and useful Improvement in Spring Shade-Rollers, of which the following is a specification.

My improvement relates to the outer end of the central spindle or shaft on and around which the spring is coiled, and is intended to produce a spindle end that can becast in one piece complete and ready to be connected to the spindle and is secured to the spindle without eXtra or separate fastenings.

In the accompanying drawings, Figure l is an isometric View of my improved spindle end. Fig. 2 is a view of a portion of the wooden shaft on which the end shown in Fig. l is placed, and Fig. 3 is a View of the shaft and outer end connected together.

The portion of the spindle lying within the roller consists of a small wooden shaft s, on the outer end of which is a metallic piece or end A, which passes out of the end of the roller and is arranged to lock into or engage with the bracket. As the spindle forms the bearing on which one end of the roller turns, it follows that it must be perfectly true and firm, and hence the connection between the shaft s and end piece A must be such that the two are held rigid and in a straight line and are prevented from turning or moving on each other in any direction. This metallic end piece A may be cast or may be constructed in any other suitable way. lVhen cast heretofore in order to secure the same to the shaft s it has been necessary to ream or bore out the casting to receive the end of the shaft or to fasten the end piece to the shaft by separate outside means, as rivets, bands, dac., all of which increases the cost of construction. In my improvement the end piece A is eastin a single piece complete, ready to be connected to the shaft without further manipulation or finishing, and is adapted Vto be fastened to the end of the shaft and securely held on the same without any extra or separate fastening device. The outer end of the end piece is made in the usual manner, with the holecfor attaching the spring, the notch d in which the pawls on the roller engage, andthe fiat end e, which locks into the bracket. The inner end is constructed with two forked extensions B B, which project some distance from the main body of the piece A. On the inner surfaces of these projections are ribs or langeshb, the outer ends h b of which maybe inclined and brought to a sharp edge, as shown in Fig. l.

To attach the end piece to the shaft, it is only necessary to force the end of the shaft between the forked projections B B, in doing which the anges or ribs b Z7 will be driven into the wood, when the attachment is complete. VVhen the shaft S is made of hard wood, it is desirable to form small grooves s s in the end in which the ribs b b iit. The distance between the inner surfaces of the projections B B should be the same as or alittle less than the diameter of the shaft, so that the projections will hold and firmly press on the shaft and all movement or play between the two be prevented. As will thus be seen, the end piece A is attached to the shaft and securely held on the latter without any separate fastening devices, and on account of the flanges or ribs l) ZJ the shaft is kept from turning in the end piece under the action of the spring connected to its other end. Furthermore, all side movement of the shaft in the end piece is prevented in one direction by the forked projections B B and in the other .direction by the ribs bb, and hence the two parts of the spindle are rmly held together and kept in a rigid straight line, and all wabbling between the two or movement of the one in the other is rendered impossible. In my improvement, therefore, the construction of the end piece is such that the same can be cast complete, ready to be at once connected to the spindle-shaft and applied to the roller, and the end is attached to the shaft without separate fastenings and held thereon, so that the shaft and end are perfectly firm and rigid and any movement between the two is prevented. In my improvement the attachment to the spindle is on the outside of thelatter, and thus there is no liability of splitting the spindle as when a spur or pin is driven into the center of the spindle, and,moreover, it is not necessary to previously bore a hole in the spindle; but the end piece can be attached to the spindle without previously preparing the lattel.

IOO

What I claim isgage with the bracket and with the stopping 1. As a new article, the spindle end A for device on the roller and having the forked 1o shadero11ers,castin one piece, having the fiat ends B B, provided with the ribs l) b, substanend e, notch d, hole c, and the forked ends B B, tially as described.

5 provided with the ribs b b, substantially as EDMUN D F. HARTSHORN.

described. Witnesses:

2. As a new article, the spindle end A for J. E. GREER,

shade-rollers, cast in one piece, adapted to en- FRED S. KEMPER. 

